50-3000 t/d eible oil seed pre-treatment, pre-pressing, extraction, refining processing line. Business Scope 1. 50-3000 ... t/d processing line of oil seed pre-treatment and pre-pressing, extraction, refining, oil materials including cotton seed, sunflower ... , etc. The business involves oil projects process design of pre-treatment, pressing, extraction of oil-bearing crops, refining of oils & ...